WMI 实例更新失败

本文关键字:失败 更新 实例 WMI | 更新日期: 2023-09-27 18:33:02

我正在尝试按照 MSDN 中的一个示例使用 C# 更新 WMI 实例,但我无法让它工作。它向我发射了一个"系统.管理.管理异常",它没有给我任何答案。你能告诉我我是否做错了什么吗?

    public void UpdateInstance(string parametersJSON)
    {
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        object result = serializer.Deserialize(parametersJSON, typeof(object));
        Dictionary<string, object> dic = (Dictionary<string, object>)result;
        PutOptions options = new PutOptions();
        options.Type = PutType.UpdateOnly;
        ManagementObject objHostSetting = new ManagementObject();
        objHostSetting.Scope = new ManagementScope("root''onguard");
        objHostSetting.Path = new ManagementPath("Lnl_Cardholder.SSNO = '33263085'"); // This is the line that fires the exception
        foreach (KeyValuePair<string, object> value in dic)
        {
            objHostSetting[value.Key] = value.Value.ToString();
        }
        //update the ManagementObject
        objHostSetting.Put(options);
    }

WMI 实例更新失败

我将代码更改为此代码,现在可以工作:

public void UpdateInstance(string scope, string query, string parametersJSON)
        {
            WindowsImpersonationContext impersonatedUser = WindowsIdentity.GetCurrent().Impersonate();
            JavaScriptSerializer serializer = new JavaScriptSerializer();
            object result = serializer.Deserialize(parametersJSON, typeof(object));
            Dictionary<string, object> dic = (Dictionary<string, object>)result;
            ManagementObjectSearcher searcher;
            searcher = new ManagementObjectSearcher(scope, query);
            EnumerationOptions options = new EnumerationOptions();
            options.ReturnImmediately = true;
            foreach (ManagementObject m in searcher.Get())
            {
                foreach (KeyValuePair<string, object> k in dic)
                {
                    m.Properties[k.Key].Value = k.Value;
                }
                m.Put();
            }
        }